Detective Superintendent Des Bray says about $150,000 was taken between 2005 and October of this year.

"We don't know the circumstances [in which] he was killed. He could have been killed in a fit of rage and then the theft of the money was an afterthought, or he could have been killed deliberately to take over his bank account and steal his money, so both of those are certainly motives that we're looking at," he said.